Patents by Inventor Yasuhiro Hamaguchi

Yasuhiro Hamaguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200235979
    Abstract: A terminal apparatus for communicating with a base station apparatus, the terminal apparatus including: a transmission unit configured to transmit a Phase-tracking reference signal (PTRS); and a higher layer processing unit configured to configure information of mapping of the PTRS. An antenna port for the PTRS is associated with an antenna port for a Demodulation reference signal (DMRS).
    Type: Application
    Filed: February 2, 2018
    Publication date: July 23, 2020
    Inventors: KOZUE YOKOMAKURA, YASUHIRO HAMAGUCHI
  • Patent number: 10710850
    Abstract: Lifting performance of a work machine is increased while suppressing an increase in a vehicle weight. When a slewing frame is seen from a side, a first reinforcement member is provided from a boom foot section to a front side part of a slewing bearing, a second reinforcement member is provided from the boom foot section to a mast foot section, and a third reinforcement member is provided from the mast foot section to a rear side part of the slewing bearing. Furthermore, a fourth reinforcement member is provided from a middle region (M) located at an upper end portion of the slewing frame and above a rear portion of the slewing bearing to the front side part of the slewing bearing, and a fifth reinforcement member is provided from the middle region (M) to the rear side part of the slewing bearing.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: July 14, 2020
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Kyohei Kawamoto, Yasuhiro Nakashima, Hiromitsu Hamaguchi
  • Publication number: 20200221494
    Abstract: A base station apparatus controls an access scheme for each radio resource by using higher layer signaling such that only signals generated by a same type of a signal generation method are multiplexed for each radio resource.
    Type: Application
    Filed: September 11, 2018
    Publication date: July 9, 2020
    Inventors: OSAMU NAKAMURA, ATSUSHI SHIRAKAWA, JUNGO GOTO, YASUHIRO HAMAGUCHI
  • Publication number: 20200221491
    Abstract: A communication means which allocates a terminal identifier to a destination communication apparatus and carries out communication with the destination communication apparatus by use of a plurality of functions including an identifier generation section 152 for generating different terminal identifiers corresponding to a function used and an identifier allocation section 114 having an identifier selecting section 104 for allocation to the destination communication apparatus. Using a plurality of different terminal identifiers (terminal function identifiers), a function to be used between the destination can be specified. Moreover, it is possible to optimize the size of a memory for storing information required for adaptive modulation control.
    Type: Application
    Filed: March 18, 2020
    Publication date: July 9, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: HIDEO NAMBA, SHIMPEI TO, YASUHIRO HAMAGUCHI
  • Patent number: 10708957
    Abstract: A decrease in access rate to a wireless medium caused by an exposed terminal apparatus is improved. A wireless communication apparatus of the present invention includes a reception unit that receives a frame indicating start of a medium protection operation, and acquires, from the frame indicating the start of the medium protection operation, BSS identification information for identifying a BSS to which a transmission-source wireless communication apparatus of the frame indicating the start of the medium protection operation belongs, and a transmission unit that determines whether or not to start a transmission operation of a frame addressed to another wireless communication apparatus belonging to a BSS to which the wireless communication apparatus belongs based on the BSS identification information.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: July 7, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hiromichi Tomeba, Tomoki Yoshimura, Yasuhiro Hamaguchi
  • Publication number: 20200196332
    Abstract: A terminal apparatus for communicating with a base station apparatus, the terminal apparatus including: a multiplexing unit configured to map a PTRS signal generated based on a pseudo-random code to a resource element; and a transmitter configured to transmit a PUSCH, wherein the multiplexing unit maps the PTRS signal to a subcarrier based on at least an offset of a frequency position, a C-RNTI, the number of resource blocks to be scheduled, and a frequency density of the PTRS, and the transmitter transmits the PUSCH to which the PTRS is mapped.
    Type: Application
    Filed: April 24, 2018
    Publication date: June 18, 2020
    Inventors: KOZUE YOKOMAKURA, YASUHIRO HAMAGUCHI
  • Patent number: 10667327
    Abstract: A BSS to which a destination wireless communication apparatus of a physical layer frame belongs is identified, and accuracy of preamble detection is improved by changing a reception operation. A wireless communication apparatus includes a reception unit that detects a frame including information for identifying a BSS, and a control unit that switches between a first operation in a case where the frame is a frame which is associated with a BSS to which the wireless communication apparatus belongs and a second operation in a case where the frame is a frame which is not associated with the BSS to which the wireless communication apparatus belongs. Carrier sensing is not performed in the first operation, and the carrier sensing is performed in the second operation.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 26, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tomoki Yoshimura, Hiromichi Tomeba, Yasuhiro Hamaguchi
  • Patent number: 10660122
    Abstract: To provide a base station apparatus, a terminal apparatus, and a communication method capable of efficiently performing retransmission control for small size data in grant-free multiple access where the base station apparatus accommodates a large number of terminal apparatuses. A base station apparatus for communicating with a terminal apparatus, the base station apparatus including: a transmitter configured to transmit an uplink grant indicating a resource for transmitting uplink data to the terminal apparatus; and a receiver configured to receive the uplink data transmitted from the terminal apparatus based on the uplink grant, and the uplink data transmitted from the terminal apparatus without being based on the uplink grant.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: May 19, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Takashi Yoshimoto, Jungo Goto, Osamu Nakamura, Yasuhiro Hamaguchi
  • Patent number: 10660126
    Abstract: Provided is a communication device, even in a case that many communication devices are connected in a radio communication network constituted of a plurality of different radio communication technologies, that suppresses data transmission of one communication technology from delaying due to data transmission situation of another communication device and enables coexistence of different radio communication technologies.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: May 19, 2020
    Assignees: SHARP KABUSHIKI KAISHA, OSAKA UNIVERSITY
    Inventors: Takashi Yoshimoto, Jungo Goto, Osamu Nakamura, Yasuhiro Hamaguchi, Seiichi Sampei, Shinsuke Ibi
  • Publication number: 20200154239
    Abstract: To provide a base station apparatus, a terminal apparatus, a location server, and a communication apparatus that are capable of improving position estimation accuracy. A physical signal generating unit configured to generate first positioning reference signal and second positioning reference signal, and a transmitter configured to transmit the first positioning reference signal and the second positioning reference signal to a terminal apparatus are provided. The first positioning reference signal is mapped on one resource block and the second positioning reference signal is mapped on at least six resource blocks. The resource block is constituted of prescribed subcarriers in a frequency domain. A maximum v number of consecutive subframes on which the first positioning reference signal is transmitted is larger than a maximum number of consecutive subframes on which the second positioning reference signal is transmitted.
    Type: Application
    Filed: July 31, 2017
    Publication date: May 14, 2020
    Inventors: RYOTA YAMADA, KATSUYA KATO, YASUHIRO HAMAGUCHI
  • Publication number: 20200154481
    Abstract: A terminal apparatus for communicating with a base station apparatus includes a controller configured to generate control information according to data to be transmitted, and a transmitter configured to transmit the data and the control information on an uplink physical channel without receiving an uplink grant from the base station apparatus. The control information includes information about a delay needed for the data transmitted, and the control information is transmitted at a transmission timing for the control information within a slot in which the data is transmitted.
    Type: Application
    Filed: December 20, 2017
    Publication date: May 14, 2020
    Inventors: JUNGO GOTO, OSAMU NAKAMURA, TAKASHI YOSHIMOTO, YASUHIRO HAMAGUCHI
  • Publication number: 20200146108
    Abstract: A base station apparatus for communicating with a terminal apparatus includes: a controller configured to generate first control information specific to the terminal apparatus and second control information addressed to multiple terminal apparatuses, and a receiver configured to receive an uplink physical channel, wherein the receiver receives data which the terminal apparatus transmits without receiving, in the first control information, control information for uplink grant, the first control information indicates semi-static allocation of a radio resource used for transmission of the data, and the second control information indicates dynamic allocation of the radio resource used for transmission of the data.
    Type: Application
    Filed: December 19, 2017
    Publication date: May 7, 2020
    Inventors: JUNGO GOTO, OSAMU NAKAMURA, TAKASHI YOSHIMOTO, YASUHIRO HAMAGUCHI
  • Patent number: 10609691
    Abstract: Selection of a suitable MCS improves throughput without increasing the number of pieces of control information. Provided is a terminal apparatus including: a control information extraction unit 703 that receives control information for requesting a CSI notification; a CQI determination unit 707 that calculates CQI according to the control information and calculates a CQI index by any CQI table of a first CQI table and a second subframe from the CQI; and a UL transmission unit 711 that performs uplink transmission of the CQI index to a base station apparatus, in which, in a case where the control information is received on a first downlink subframe set, the CQI determination unit 707 generates the CQI index using the first CQI table, and in which, in a case where the control information is received on a second downlink subframe set, the CQI determination unit 707 generates the CQI index using the second CQI table.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: March 31, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Osamu Nakamura, Jungo Goto, Daiichiro Nakashima, Yasuhiro Hamaguchi
  • Patent number: 10602539
    Abstract: A communication means which allocates a terminal identifier to a destination communication apparatus and carries out communication with the destination communication apparatus by use of a plurality of functions including an identifier generation section 152 for generating different terminal identifiers corresponding to a function used and an identifier allocation section 114 having an identifier selecting section 104 for allocation to the destination communication apparatus. Using a plurality of different terminal identifiers (terminal function identifiers), a function to be used between the destination can be specified. Moreover, it is possible to optimize the size of a memory for storing information required for adaptive modulation control.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: March 24, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hideo Namba, Shimpei To, Yasuhiro Hamaguchi
  • Patent number: 10602505
    Abstract: In a case of a contention-based radio communication technique, it is necessary to identify a terminal apparatus that has performed data transmission among terminal apparatuses sharing a frequency resource. There is a problem that it is difficult to identify the terminal apparatus that has performed data transmission in a case with a large number of terminal apparatuses that are non-orthogonally spatial multiplexed.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: March 24, 2020
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Jungo Goto, Osamu Nakamura, Takashi Yoshimoto, Yasuhiro Hamaguchi
  • Publication number: 20200072939
    Abstract: Provided is a terminal apparatus including: a receiver configured to detect a transmission direction of a signal used for communication with at least one base station apparatus; and a transmitter configured to transmit, to a location server, base station direction information for indicating the transmission direction detected.
    Type: Application
    Filed: March 7, 2018
    Publication date: March 5, 2020
    Inventors: RYOTA YAMADA, KATSUYA KATO, YASUHIRO HAMAGUCHI, KAZUHIKO FUKAWA
  • Publication number: 20200068603
    Abstract: A method that carries out uplink multiple access while reducing complexity in processing accompanying exchange of control information. A terminal device that performs uplink multiple access communication includes a reception unit that receives a frame including uplink multiple access connection information, a first autonomous decentralized control unit that instructs securing time of a wireless resource, and a second autonomous decentralized control unit that instructs securing time of a wireless resource after reception of a frame including the uplink multiple access connection information. The terminal device is instructed securing time of the wireless resource by the first autonomous decentralized control unit in a case that a frame including the uplink multiple access connection information is not received. Securing time of the wireless resource is instructed by the second autonomous decentralized control unit in a case that a frame including the uplink multiple access connection information is received.
    Type: Application
    Filed: November 5, 2019
    Publication date: February 27, 2020
    Inventors: Tomoki Yoshimura, Hiromichi Tomeba, Yasuhiro Hamaguchi
  • Publication number: 20200059889
    Abstract: A terminal apparatus (20) includes: a first direction configuring unit configured to receive transmission beam information that is information of a transmission beam used by a transmission device (10-m) and configure a first direction (102-m) that is a direction vector of the transmission beam in a first coordinate system based on the transmission beam information; a radio receiving unit configured to configure a reception beam used for reception of a signal from the transmission device; a second direction configuring unit configured to configure a second direction (202-m) that is a direction vector of the reception beam in a second coordinate system; and an orientation measuring unit configured to perform measurement of an orientation of the terminal apparatus itself based on the first direction (102-m) and the second direction (202-m).
    Type: Application
    Filed: May 11, 2018
    Publication date: February 20, 2020
    Inventors: KATSUYA KATO, RYOTA YAMADA, YASUHIRO HAMAGUCHI
  • Publication number: 20200031637
    Abstract: Lifting performance of a work machine is increased while suppressing an increase in a vehicle weight. When a slewing frame (1) is seen from a side, a first reinforcement member (11) is provided from a boom foot section (5) to a front side part of a slewing bearing (22), a second reinforcement member (12) is provided from the boom foot section (5) to a mast foot section (6), and a third reinforcement member (13) is provided from the mast foot section (6) to a rear side part of the slewing bearing (22). Furthermore, a fourth reinforcement member (14) is provided from a middle region (M) located at an upper end portion of the slewing frame (1) and above a rear portion of the slewing bearing (22) to the front side part of the slewing bearing (22), and a fifth reinforcement member (15) is provided from the middle region (M) to the rear side part of the slewing bearing (22).
    Type: Application
    Filed: March 30, 2017
    Publication date: January 30, 2020
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Kyohei KAWAMOTO, Yasuhiro NAKASHIMA, Hiromitsu HAMAGUCHI
  • Patent number: 10547409
    Abstract: A signal that is transmitted to a terminal apparatus itself is demodulated with high precision, and throughput is improved. A terminal apparatus that communicates with a base station apparatus includes: a reception unit that receives downlink control information from the base station apparatus; and a signal detection unit that demodulates a signal that is transmitted to the terminal apparatus itself, based on first modulation mapping, and demodulates an interference signal based on second modulation mapping, in a case where information relating to a transmit power of the interference signal is included in the downlink control information.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: January 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Katsuya Kato, Tomoki Yoshimura, Osamu Nakamura, Ryota Yamada, Hiromichi Tomeba, Jungo Goto, Yasuhiro Hamaguchi